RELATIV INDEX 
Duodenum anatomy 611.342 
diseases of 616.34 
Dupage co. Ill. history 977.324 
Duplex 
envelop sistem Sun. skools 268.1423 
telegraf commun. 654.2 
elec. eng. 621.38232 
Duplicate dep’t lib. econ. 025.26 
Duplicates 
libraries and schools 021.33 
library accession routine o23.261 
sale of lib. econ. 025.265 
Duplicating 
machines offis equip. 652 
notises, etc. lib. adm. o25.129 
Duplication, apparent 
- deformities 617.34 
Duployé shorthand = 653.38 
Dupont, Pierre French poet. 841.82 
Dura mater, cerebral anat. 611.8195 
sinusesof “ 611.1451" 
spinal “ 611.8295 
Durango, Mexico hist. oa7z2.1 
Duration of work econ. 331.81 
Durazzo, Albania 
World war 1915 940.4259 
1916 940.4288 
1918 940.4378 
nav. attack 940.458 
Durban hist. 968.47 
Durbar social customs 394.44 
D'Urfey, T: Eng. humor 827.44 
"Durham, England hist. 942.81 
cattle 636.2222 
t co. Ont. hist. 971.356 
Durif grape 634.8544 
Duroc Jersey swine 636.483 
Durra cereals 633.178 
Dusseldorf World war 1914 940.444 
Dusseltal swine 636.431 
Dust 
air pollution 614.71 
cosmic descrip. astron. 523.16 
inhalation of hygiene 613.63 
prevention of, in factories 628.511 
Dusting 
domestic economy 648.52 
protection against pests 632.94 
Dutch 
cattle 636.235 
cheese, hard 637.3543 
soft 637.356 
897 
Dukes co. Mass. history 974.49 
Dukla pass World war 1915 940.4253 
Dulcimer music 787.9 
Dum 
asylums 
bels amusements 
hygiene 
education of 
waiters dom. econ. 
engin'g 
Dumas, A. fils Fr. dram. 
A.D. pre “ ¢ 
fic. 
Dumb, see Dum 
Dumba sheep 636.385 
\Dumbarton, Scotland hist. 941.37 
Dumbartonshire fowls 636.523 
Dumdum bullets 623.45535 
1Dume history 967.15 
Dumfries, Scot. hist. 041.48 
Dummies 
letter files offis ec. 651.675 
Dummy titles lib. econ. 020.38 
Dumpies, Scotch poultry 636.528 
Dumping grates st’'m eng. 621.1835 
wagons agric. 631.3735 
Dunaburg World war 1918 940.4374 
Dunajec-San W. war 1915 040.4253 
Dunbar, P.L.. Amer. fiction 813.49 
poetry 811.49 
W: Eng. poetry 821.23 
‘Dunbarton, Scotland 941.37 
-Dundas co. Ont. history 971.375 
Dundee, Natal hist. 968. 42 
Scotland “ 941.31 
Dunes geology 551.33 
Dung beetle zool. 595.764 
fork digging tools 631.3114 
Dunkers  baptists 286.3 
Dunkirk W. war nav. base 940.453 
'Dunklin co. Mo. history 977.899 
Dunlap, W: Am. drama 812.22 
Dunlop cattle 636.2252 
Dunmore’s, Lord, war 973.27 
‘Dunn co. Wis. history 977.543 
Dunne, F. P: Amer. humor 817.5 
Duns Scotus mediev. phil. 189.4 
Dunsany, E: J: M. D. P. 
Eng. drama 822.91 
fiction 823.91 
Duodecimals arithmetic 511.7 
Topics in black face type are subdivided. Superior ficures refer to the tables at the end of this index